LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1990 >> Bronco 4.9 Y, Standard, T18 >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Controls - Specifications >> Ignition System >> Ignition Timing
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Ignition Timing

IGNITION TIMING

Calibration Code (1) Degrees BTDC RPM
0-51E-R02 10 650-750
0-51F-R02 10 650-750
0-51G-R02 10 650-750
0-51H-R02 10 650-750
0-51R-R02 10 625-725
0-52H-R00 10 (2) 590-690
0-52J-R00 10 (2) 525-625
0-52K-R00 10 (2) 525-625
0-52L-R02 10 (2) 550-650
0-52Q-R00 10 (2) 525-625
0-52R-R00 10 (2) 525-625
0-52S-R00 10 (2) 590-690
(1) Located on underhood emission decal.
(2) Automatic transmission in Drive.
IGNITION TIMING

Calibration Code (1) Degrees BTDC RPM
0-53E-R00 10 (1) Idle
0-54Y-R00 10 (1) Idle
8-53F-R10 10 (1) Idle
9-54E-R10 10 (1) Idle
9-54J-R10 10 (1) Idle
9-54K-R10 10 (1) Idle
9-54R-R10 10 (1) Idle
9-54S-R10 10 (1) Idle
9-54T-R10 10 (1) Idle
9-54V-R10 10 (1) Idle
9-54W-R10 10 (1) Idle
9-54Z-R10 10 (1) Idle
(1) Refer to underhood emission decal for calibration code and RPM specification.
IGNITION TIMING

Calibration Code (1) Degrees BTDC RPM
0-64E-R00 10 (1) Idle
0-64H-R00 10 (1) Idle
0-64K-R00 10 (1) Idle
0-64R-R11 10 (1) Idle
0-64R-R12 10 (1) Idle
9-75A-R12 10 (1) Idle
9-76A-R10 10 (1) Idle
9-76C-R12 10 (1) Idle
(1) Refer to underhood emission decal for calibration code and RPM specification.
scientia non olet · About LEMON Manuals